Large displacement fluid producing flow measuring device for deep water intelligent well

Abstract

The invention discloses a large displacement fluid producing flow measuring device for a deep water intelligent well. The large displacement fluid producing flow measuring device for the deep water intelligent well comprises an upper joint, a sleeve, and a lower joint; the sleeve is internally provided with a center pipe; the upper end of the center pipe is connected with the upper joint, and thelower end of the center pipe is connected with the lower joint; a circuit module is arranged outside the pipe wall of the center pipe, and the circuit module comprises a Doppler ultrasonic flow meter,a low conductivity electromagnetic flow meter, an external-pressure pressure gauge, an inner-pressure pressure gauge, a thermometer and a measuring circuit; the outer wall of one side of the upper joint is provided with a cable hole channel in the axial direction; the cable hole channel is internally provided with a cable; one end of the cable is connected with a cable connector, and the other end of the cable is connected with the measuring circuit; and the outer wall of the other side of the upper joint is provided with a pressure measurement through hole, one end of the pressure measurement through hole communicates with the exterior of the upper joint, and the other end is connected with the external-pressure pressure gauge. The large displacement fluid producing flow measuring devicefor the deep water intelligent well solves the problem that the full range downhole flow of the 0-3000m3 of different formations of the multi-output layer oil well cannot be measured according to theexisting technology, and a downhole temperature measurement, an annulus pressure measurement and a tube pressure measurement are provided.

Description

technical field [0001] The invention belongs to the technical field of downhole liquid production profile testing, and more specifically relates to a large-displacement liquid production flow measurement device for deepwater intelligent wells. Background technique [0002] Smart well is a real-time injection-production management network. It uses permanent sensors placed downhole to collect parameters such as downhole pressure, temperature, and flow rate in real time, and transmits the collected signals to the ground through communication cables. Data mining, analysis and learning, combined with reservoir numerical simulation technology and optimization technology to form reservoir management decision information, and real-time feedback to the downhole production system to control the production of oil layers and improve the production status of oil wells through the control system. Smart well technology is a new technology developed to adapt to modern oil reservoir manageme...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a large-displacement liquid production flow measurement device for deep-water intelligent wells, which solves the problem that the prior art cannot measure the 0-3000m 3 Full-scale downhole flow measurement, and provide downhole temperature, annular pressure and pipe pressure measurement

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